Island



(No Model.)

J. P. CARR.

INGUBATOR.

VENTEIF? Patented Jan. 1', 1889.

Milan $24M N PETERS. whuxn-Lm miner. Washingmn. o. c.

nirnn rer ns Parnnr rricn.

J OHN F. CARR, OF TIVERTON, RHODE ISLAND.

INCUBATOR.

SPECIFICATION forming part of Letters Patent No. 395,484, dated January 1, 1889.

Application filed April 3, 1888. fierial No.269,471. (No model.)

T aZZ whom it 11mg concern:

Be it known that 1, JOHN F. CARR, oi '.liverton, in the county of Newport, State of Rhode Island, have invented a certain new and useful Improvement in Incubators, of which the following is a description sufficiently full, clear, and exact to enable any person skilled in the art or science to which said invention appertains to make and use the same, reference being had to the accompanying drawings, forming part of this speci fication, in which Figure l. is a vertical longitudinal section of my improved incubator, taken on line a a: in Fig. 2, certain parts being shown in side elevation; Fig. 2, a top plan view, certain parts being shown in. section, on, line 1 y in liig. 1; Fig. 3, a vertical transverse section taken on line .2 in Fig. 1, some of the parts being shown in side elevation; Fig. 4, an enlarged vertical section of the moisture-pan, taken on line v or in Fig. 1; Fig. 5 an enlarged vertical section taken on line w in Fig. 4i; Fig. 6, an enlarged vertical section taken on line i t in Fig. 7, showing certain parts of the regulating. device; Fig. 7, an enlarged side elevation,partly in section, on line .9 s in Fig. 6; Fig. 8, an enlarged side elevation of a portion of the lamp-burner; and Fig. 9, an enlarged top plan view of the burn er, partly in section, on line 1' 1' .in Fig.

Like letters and figures oi reference indicate correspondii'lg parts in the different figures of the drawings.

My invent-ion relates to that class of incubators in. which hot water is employed as a heating medium; and it consists in certain novel features, as hereinafter set forth and claimed, the object being to produce a more effective and otherwise desirable device of this character than is now in ordinary use.

The nature and operation of the improve ment will be readily understood by all conversant with such matters from the following explanation In the drawings, A represents the body or case, B the boiler or heating device, 0 the egg-chamber, and J the hot-air or boilerchamber.

vided at each side with an orlliinary dead-air space or insulating-chamber, m, which may be omitted, if desired, or other means for performing the same functions employed. Between the egg-chamber and the end q of. the body A there is a transversely-arranged partition-wall, I), having an opening, 46, at or near its lower end, said wall, in conjunction with the end q of said body, forming a flue, 104:. At the opposite end of the chamber there is a corresponding transversely arranged partition-wall, 49, havin g an opening, i5, at or near its lower end. Adjacent to the partition if) and between. said partition and the end i of the body A there is also a transversely-arranged partition-wall, 71, having an opening, 47, at or near its upper end, the partitions 5L9 and 71. separating the egg-chamber (.1 from the hot-air or boiler chamber J and forming a diving-flue, 95, for the passage of heated air from the boiler-chamber intothe egg-ch amber. The end i of the body A is provided with a draft-opening near its bottom, which is fitted with a door or register, 19, for letting air into the hot-water or boiler chamber J, and there is also an opening, 7 5, in the top 42 of said body over the flue 10-i-,'throngh which. the heated air and vapors from the egg-chamber may pass out of the incubator. The inner wall of one of the chambers 012,013 posite the egg-chamber, (see Fig. 2,) is provided with a door which is hinged at 4%, the side ot' the body A opposite said door being also hinged to constitute the door, as shown at 4.3, the object of said doors being to gain acc to the egg-chamber. A door hinged at f 2 is also provided in the end i of the body A, which opens into the hot-air or boiler chamber J.

The egg-chamber (l is provided with a shelf, g, on which a series of trays, f, are disposed for containing the In the present instance but one shelf is shown; but it will be understood that as many shelves and eggtrays are to be employed as may be required, or in accordance with the size of the incubator. A boiler, 13, is disposed in the chamber J between the end '6 of the body A and partition h, said boiler being provided with a conical flue or pipe, pnvhich is inserted tightly in its bottom and extends centrally upward nearly to its top, where it is bent or curved laterally and carried outward through the side of the boiler, as shown at 106.

A smoke-pipe, a, is connected with the upper end of the pipe p, said smoke-pipe p. ssin horizontally, or approximately so, through the partition 4f),eggchan1ber(7, and partition 1) into the tlue 1.04. lhelower end of the pipe p is extended below the bottom of the boiler and left open to serve asa 'iortion ot' thelampohim ney and receive the lamp-ch i m ney proper, as shown in Fig. 1.

Horizontally-arranged educl ion -pipes 7t lead from the top oi? the boiler ll through the partition-wall 4:!) into the upper portion of the egg-chamber C, where they are coiled or folded to afford the requisite radiating-surface, and connected by vertical pipes '6, near the partition -wall I), with horizontally-arranged induction or return pipes 7, which lead into the bottom of the boiler.

A pan, ll, contaii'iing water, is arranged longitudinally on the smoke-pipe l within the egg-chamber C, said pan being tightly secured to said pipe by soldering or in any other suitable manner. The upper portion of the smoke-pipe lbeneath the pan is removed (see Fig. 4) to enable the smoke and products of combustion from the lamp to come directly into contact with the bottom of the pan and thereby utilize the heat to better advantage in evaporating the water. The bottom ol' the pan is curved upward in cross-section and subserves, as a portion ol' the pipe 4 or as a cover, to close the opening made by the removal of the upper portion of said pipe beneath said pan, as described. The pan provided for a portion of its length. with a permanent cover, 8, and also with a sliding cover, 15, said sliding cover being held in position on the pan by a band or clamp, lfi, attached to the cover and by which it may be moved, the degree of moisture or the humidity oi the atmosphere in the egg-chamber being regulated by means ol said sliding cover. A plugged feed-tube, 17, passes vertically through the top 42 ot' the body A into the boiler B, through which the boi ler may be supplied with water, the plug of the tube being provided with a vent-hole. (Not shown.) A plugged tube, 18, is alsoinserted in the top 42 above the open portion of the pan ll, through which said pan may be supplied with water.

Secured to the bottom (I of the body A there is a socket-piece, 27, and fitted to swing laterally in said socket there is a bracket, 26, carrying at its outer end a horizontally-arranged holder or table, 25, on which a lamp, D, is placed. The wick-tube 35 of said lamp (see Figs. 8 and 9) is provided with an ordinary extinguishing-sleeve, (34-, which is fitted to slide freely thereon in the usual manner. A bent lever, 60, having a long arm, 10, is pivoted at 61 to the. plate 62 of the lampburner, said lever passing loosely through eyes 63 on the sleeve 6%, thereby enabling said sleeve to be raised or lowered, as desired,

the long arm of said lever. A horizontally arranged cone-shaped pipe, 50, having its outer end, 51, closed and its inner end bent, as shown at 98, (see Figs. 3, ('3, and 7,) has its curved end firmly secured between clampingplates 52 by screws 28, said plates being rigidly attached to a short mandrel, Ill, which is journaled in the outer end of a htnizontallyarranged bracket, 30, projectingfrom the top of the boiler ll. A short tube or nipple, 55, is inserted in the side of the boiler, as shown in Fig. i}, said nipple being connected with the smaller end of the conical, tube 50 by a flexible pipe, 56, which permits the conical tube to oscillate on its pivotal support.

A pendent connterbalancing-arm, 57, is secured to the clamping-plate 52, said arm being provided with one or more weights, 58, as:

required, which are adjustably secured thereon by a nut, 50. A vertically-arranged rod, (37, connects the pivoted conical pipe 50 with the bent lever (50, and when said pipe is elevated or depressed the flame of the lamp will be correspondingly increased or diminished, as the case maybe, the sleeve 64, bent lever (30, rod (37, pivoted conical tube 50, counterbalancing-arm 57, and the pipe 56, which connects said conical pipe with the boiler ll, constituting the essential features of the flame or heat regulating device of the incubator. The lever and sleeve il constitute an extinguisher for the lamp, and their construction may be varied as desired, provided they perform their functions properly in connection with the other parts of the regulator. A vent-hole, 90, is formed .in the upper side of the conical pipe 50, near its outer end, for the escape and admission of air as the water is forced into or withdrawn lrom said pipe.

One object in making the pipe conical is to maintain an air space or chamber at all times near its larger end when the smaller end is tilled with water, and thereby enable the pipe to till rapidly when the water is suddenly healed; also to adapt said pipe to contain a greater amount ol water at its outer than at its inner end, and by thus weighting it increase its leverage and. enable it to exert sufficient force on the lever ($0 to raise the sleeve Gil: under all. circumstances, or in case said sleeve should at any time become accidentally clogged or stm'ak and require the application of more than ordinary power to move it.

A short sheet-metal chimney, 5, having a glazed. opening, 20, through which. the flame may be seen, is provided for the lamp D, said chimney being preferably in the shape of an inverted truncated. cone and of sul'ticient length to enter the lower end of the pipe 19 a short distance when in position on the lamp.

The partition h serves as a deflector or guard to prevent the cold air admitted to the hot-air or boiler chamber J through the draftopening covered by the door or register 19 from passing directly into the egg-chamber (J through the opening 45 before becoming properly heated by the boiler, said partition turning it upward around the boiler and cansing it to pass through the diving-flue 95.

The heavy or noxious vapors given ol'f by the eggs during the process of incubation and the moisture from the pan ll fall to the bot tom of the egg-chamber where they are absorbed and carried away by the current of heated air from the boiler-chamber J as it passes down the due 95 between the partitions 72 and 49, across the bottom of the egg-chamher, up the flue 104-, between the partition I) and end q, and out of the aperture 75, formed in the top 42, which may be connected with a chimney, 107, if desired, to increase the draft.

It will be obvious that the partition-walls 49 and 7) may be extended downward to the bottom cl or floor of the egg-chamber and re spectively provided with one or more holes at or near their lower ends and perform their functions properly; also, that the partitionwall h may be extended upward to the top 42 and provided with one or more holes at or near its upper end and perform its functions properly. v

The insulating-chambers on may be om itted and any other suitable boiler or lamp employed, if desired, without entirely departing from the spirit of my invention. The upper portion of the smoke-pipe st may also be left intact or not removed, if preferred.

In the use of my improvement, the boiler and moisture-pan being first properly filled with water, the upper portion of the chimney 5 is inserted in the lower portion of the due or pipe 2), after which the holder 25 is moved into position to support the lamp, and the rod (37 connected with the bent lever 60, the lamp having been previously lighted and the wick adjusted at the proper height in the usual manner. 'hen the temperature of the water in the boiler becomes grez'tter than is required to properly heat the egg-chamber, water will be forced through the nipple and flexible pipe 5t into the conical pipe 50, causing said conical pipe 10 fall and force down the long arm 10 of. the lever (i0, thereby raising the sleeve G-t, diminishing the size of the flame,

and reducing the temperature of the water, and as the temperature of the water in the boiler falls the water in the conical tube 50 will run back into the boiler again, permitinstead of its side.

ting the counterbalancing-arm 57 to elevate said tube and actuate the lever 60 to lower the sleeve 64-, and thereby increase the flame of the lamp and temperature of the water in a manner that will be readily understood by all conversant with such matters without a more explicit description. \Vhen the water becomes suliiciently heated in the boiler, it will pass outward through the eduction-pipes k and be returned through the connectingpipes tand induction-pipes 7, thus maintainin a constant circulation through said pipes and heating the egg-chamber to any desired degree, or, in accordance with the temperature of the water in the boiler, an even temperature of the water, and hence of the atmosphere in said chamber, being maintained by the regulating device already described. 13y bending the flue or pipe 1) laterally and carrying it through the side wall of the boiler 1-3, near its top, as described, the smoke and hot air passing up said :tluc from the lamp are caused to impinge on the bent portion 100 of said pipe, and thereby heat the water in the boiler with much greater rapidity and to better advantage than would be the case if said pipe passed through the top of the boiler I connect the induction, and also the eduction, pipes with opposite sides of the boiler, as this enables them to be arranged: to the best advantage in the eggchamber.

As I have made the heat regulator or thermostat herein described the subject-matter of another application for Letters Patent, filed July 2, 1888, Serial No. 278,814, I do not herein claim the same, broadly, when in and of itself considered.

l-laving thus explained my invention, what I claim is In an incubator, a pan for containing water, said pan being disposed in. the egg-chamber, in combination with a smoke-pipe leading from the boiler through said chamber, a portion of said pipe being removed and the opening thus formed covered or closed by the pan, whm'eby the smoke and heated air from the lamp are brought into direct contact with the pan on their passage through said pipe, substantially as and for the purpose set fortln JOHN F. CARR.

\Vitnesses:

(l. A. SHAW, E. M. SPINNEY. 

